signature

Signature is a particle data analysis system for molecular electron microscopy (EM). It applies a hierarchical screening procedure to identify molecular particles in EM micrographs.

The user interface of the program provides flexible functions to facilitate image data visualization, particle annotation and particle quality inspection.

Signature aims to create an informative computing environment for EM research. Your constructive feedback will help further improve the system design and will be highly appreciated.

Here are some key features of "Signature":

· Algorithmic particle screening & manual annotation
· Frequently used image processing functions
· Image Stack Editor for particle display and browsing
· Compatible data I/O with major EM packages
· Informative graphical user interface
· Data batch processing via scripting.

E-Signature is a small application that innovates creation of business cards, objectively, for insertion during sending an electronic mail to anybody.

With over twenty diverse templates already provided within the software, you are sure to impress clients, or even colleagues. Tutorial on use is also readily available within the software, by clicking the Help button, or tab.

Limitations:

· 30 day trial.
· Save disabled.

Mailer Signature is a plugin for Winamp which adds name of currently playing song to your e-mail signature.

Signature Creator allows you build your own email signatures with a logo, formatted text, hyperlinks and an handwritten signature above it in few seconds. Use the signatures to accent your individuality in your emails and web sites!

Mailer Signature is a plugin for Winamp which adds name of currently playing song to your e-mail signature. There is a PRO version on the producer site .. 10$.

Test::Signature is a Perl module to automate SIGNATURE testing.

SYNOPSIS

# This is actually the t/00signature.t
# file from this distribution.
use Test::More tests => 1;
use Test::Signature;

signature_ok();

ABSTRACT

Test::Signature verifies that the Module::Signature generated signature of a module is correct.

Module::Signature allows you to verify that a distribution has not been tampered with. Test::Signature lets that be tested as part of the distributions test suite.
By default, if Module::Signature is not installed then it will just say so and not fail the test. That can be overridden though.

IMPORTANT: This is not a substitute for the users verifying the distribution themselves. By the time this module is run, the users will have already run your Makefile.PL or Build.PL scripts which could have been compromised.
This module is more for ensuring youve updated your signature appropriately before distributing, and for preventing accidental errors during transmission or packaging.

Signature description
Signature is a Firefox extension that will allow you to put your customized signature on a post or e-mail Signature will insert a custom text into your posts and emails so that you can customize them even further.

Requirements:

· Firefox: 1.0 2.0.0

Use the Signature Switch Thunderbird extension to easily switch the signature on/off or choose a new one from your predefined set.

Additional features include the support of fortune-cookie-files and automatic switching based on recipients.

Signature Creator is a tool to create "handwriting" signs. It is a simple way to accent your individuality in e-mail messages.

FEATURES
- It is simple tool, based on two wizards: Sign Designer and Advanced Signature Creator.
- Sign Designer builds desired sign.You can adjust name, font, size, color and slant of your sign.
- Advanced Signature Creator embeds sign into Outlook Express 5 (or above) Signature
- Signature Creator is compatible with Windows 95,98,ME,NT,2000 and XP with Internet Explorer 5.01 or above installed.

Limitations : - There is a 30-day evaluation period, after which it will expire and may not be used.
- Every sign created contains a "Signature Creator - Free Trial. http://www.erstenware.com" note.

Module::Signature is a Perl module signature file manipulation.

SYNOPSIS

As a shell command:
% cpansign # verify an existing SIGNATURE, or
# make a new one if none exists

% cpansign sign # make signature; overwrites existing one
% cpansign -s # same thing

% cpansign verify # verify a signature
% cpansign -v # same thing
% cpansign -v --skip # ignore files in MANIFEST.SKIP

% cpansign help # display this documentation
% cpansign -h # same thing
In programs:
use Module::Signature qw(sign verify SIGNATURE_OK);
sign();
sign(overwrite => 1); # overwrites without asking

# see the CONSTANTS section below
(verify() == SIGNATURE_OK) or die "failed!";

Mail::DKIM::Signature module encapsulates a DKIM signature header.

CONSTRUCTORS

new() - create a new signature from parameters

my $signature = new Mail::DKIM::Signature(
[ Algorithm => "rsa-sha1", ]
[ Signature => $base64, ]
[ Method => "relaxed", ]
[ Domain => "example.org", ]
[ Headers => "from:subject:date:message-id", ]
[ Query => "dns", ]
[ Selector => "alpha", ]
);
parse() - create a new signature from a DKIM-Signature header
my $sig = parse Mail::DKIM::Signature(
"DKIM-Signature: a=rsa-sha1; b=yluiJ7+0=; c=relaxed"
);

Constructs a signature by parsing the provided DKIM-Signature header content. You do not have to include the header name (i.e. "DKIM-Signature:") but it is recommended, so the header name can be preserved and returned the same way in as_string().

Note: The input to this constructor is in the same format as the output of the as_string method.

METHODS

algorithm() - get or set the algorithm (a=) field

The algorithm used to generate the signature. Should be either "rsa-sha1", an RSA-signed SHA-1 digest, or "rsa-sha256", an RSA-signed SHA-256 digest.
See also hash_algorithm().

as_string() - the signature header as a string
print $signature->as_string . "n";

outputs

DKIM-Signature: a=rsa-sha1; b=yluiJ7+0=; c=relaxed

As shown in the example, the as_string method can be used to generate the DKIM-Signature that gets prepended to a signed message.
as_string_without_data() - signature without the signature data

print $signature->as_string_without_data . "n";

outputs

DKIM-Signature: a=rsa-sha1; b=; c=relaxed

This is similar to the as_string() method, but it always excludes the "data" part. This is used by the DKIM canonicalization methods, which require incorporating this part of the signature into the signed message.

body_count() - get or set the body count (l=) field

my $i = $signature->body_count;

Informs the verifier of the number of bytes in the body of the email included in the cryptographic hash, starting from 0 immediately following the CRLF preceding the body. Also known as the l= tag.

When creating a signature, this tag may be either omitted, or set after the selected canonicalization system has received the entire message body (but before it canonicalizes the DKIM-Signature).

body_hash() - get or set the body hash (bh=) field

my $bh = $signature->body_hash;

The hash of the body part of the message. Whitespace is ignored in this value. This tag is required.

When accessing this value, whitespace is stripped from the tag for you.

canonicalization() - get or set the canonicalization (c=) field

$signature->canonicalization("relaxed", "simple");

($header, $body) = $signature->canonicalization;

Message canonicalization (default is "simple/simple"). This informs the verifier of the type of canonicalization used to prepare the message for signing.
In scalar context, this returns header/body canonicalization as a single string separated by /. In list context, it returns a two element array, containing first the header canonicalization, then the body.

domain() - get or set the domain (d=) field

my $d = $signature->domain; # gets the domain value
$signature->domain("example.org"); # sets the domain value

The domain of the signing entity, as specified in the signature. This is the domain that will be queried for the public key.

expiration() - get or set the signature expiration (x=) field

Signature expiration (default is undef, meaning no expiration). The signature expiration, if defined, is an unsigned integer identifying the standard Unix seconds-since-1970 time when the signature will expire.

get_public_key() - fetches the public key referenced by this signature

my $pubkey = $signature->get_public_key;

Public key to fetch is determined by the protocol, selector, and domain fields.

hash_algorithm() - access the hash algorithm specified in this signature

my $hash = $signature->hash_algorithm;

Determines what hashing algorithm is used as part of the signatures specified algorithm.

For algorithm "rsa-sha1", the hash algorithm is "sha1". Likewise, for algorithm "rsa-sha256", the hash algorithm is "sha256". If the algorithm is not recognized, undef is returned.

headerlist() - get or set the signed header fields (h=) field

$signature->headerlist("a:b:c");

my $headerlist = $signature->headerlist;

my @headers = $signature->headerlist;

Signed header fields. A colon-separated list of header field names that identify the header fields presented to the signing algorithm.

In scalar context, the list of header field names will be returned as a single string, with the names joined together with colons. In list context, the header field names will be returned as a list.

identity() - get or set the signing identity (i=) field

my $i = $signature->identity;

Identity of the user or agent on behalf of which this message is signed. The identity has an optional local part, followed by "@", then a domain name. The domain name should be the same as or a subdomain of the domain returned by the domain method.

Ideally, the identity should match the identity listed in the From: header, or the Sender: header, but this is not required to have a valid signature. Whether the identity used is "authorized" to sign for the given message is not determined here.

method() - get or set the canonicalization (c=) field

Message canonicalization (default is "simple"). This informs the verifier of the type of canonicalization used to prepare the message for signing.

protocol() - get or set the query methods (q=) field

A colon-separated list of query methods used to retrieve the public key (default is "dns"). Each query method is of the form "type[/options]", where the syntax and semantics of the options depends on the type.

selector() - get or set the selector (s=) field

The selector subdivides the namespace for the "d=" (domain) tag.

data() - get or set the signature data (b=) field

my $base64 = $signature->data;
$signature->data($base64);

The signature data. Whitespace is automatically stripped from the returned value. The data is Base64-encoded.

prettify() - alters the signature to look "nicer" as an email header

$signature->prettify;

This method may alter the signature in a way that breaks signatures, so it should be done ONLY when the signature is being generated, BEFORE being fed to the canonicalization algorithm.

prettify_safe() - same as prettify() but only touches the b= part

$signature->prettify_safe;

This method will not break the signature, but it only affects the b= part of the signature.

timestamp() - get or set the signature timestamp (t=) field

Signature timestamp (default is undef, meaning unknown creation time). This is the time that the signature was created. The value is an unsigned integer identifying the number of standard Unix seconds-since-1970.

version() - get or set the DKIM specification version (v=) field

This is the version of the DKIM specification that applies to this signature record.

A simple, easy to use, extreemly flexable signature generator. You can create your own quotation files of up to 200 texts. Usable with any email client that uses a text file for its signature file. Capable of generating custom borders for use with the random text. No tagline added by the program that you cannot modify to your liking. If you are currently using aprevious version of Signature Randomizer come to our web sight to download the exe file for this update.

A simple, easy to use, extreemly flexable signature generator. You can create your own quotation files of up to 200 texts. Usable with any email client that uses a text file for its signature file. Capable of generating custom borders for use with the random text. No tagline added by the program that you cannot modify to your liking. If you are currently using aprevious version of Signature Randomizer come to our web sight to download the exe file for this update.